I have written an SMT file generator available at http://users.tpg.com.au/sarason/index.html try the YM6021 generator output option, it is very similar to a CSM66 file. The YMxx series file is a little different in format. This should help your file generation. Next go onto the machine and have a go at it's pre-DOS interface. I program my files with my program and then download via RS232. If there are major stumbling blocks email me on the address on the web page. Don't expect a prompt reply. the machines mechanics are late 1970's style but it was sold up until 1990's when a newer controller and updated component alignment replaced it. This was the YM100,120,80 etc series from Yamaha and Gem series from philips. Good Luck
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